OBJECTIVE LIFE SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Captured by green plants
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reflected back into space
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degraded into infrared radiation
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used to generate wind
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Detailed explanation-1: -In total approximately 70% of incoming radiation is absorbed by the atmosphere and the Earth’s surface while around 30% is reflected back to space and does not heat the surface. The Earth radiates energy at wavelengths much longer than the Sun because it is colder.
Detailed explanation-2: -The sun is continuously sending out solar radiation in all directions. Sunlight that reaches Earth’s surface and atmosphere is either absorbed or reflected. Absorbed energy gets re-radiated the in the form of infrared, also known as longwave radiation.
Detailed explanation-3: -Roughly 49% of solar radiation is infrared between 700nm-1mm; about 7% is from ultra-violet between 100-400mm; less than 1% of solar radiation is emitted as x-rays, gamma rays and radio waves.